Thread: Battery tender/charger for 2021 M340i with 48 volt system
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      12-02-2020, 09:26 AM   #3
covinsky
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Drives: 2006 330xi sport
Join Date: Apr 2011
Location: glen carbon, il

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Spoke with Deltran who makes Battery Tender and they suggested their 4 volt unit. It is the same unit they built for BMW accessories. Hope this helps anyone else for their 2021 BMW. Chris
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